Research On The Transfer Alignment Method Of Space Maneuver Vehicle On SINS

Taking the Space Maneuver Platform as application background, I presented the detail design of inertial navigation system transfer alignment of Space Maneuver Platform in micro-gravity environment based on the inertial navigation system transfer alignment of Airborne by workteam done before. The trajectory design, calculation model of the inertial navigation system, error equations of the inertial navigation system, the matching schemes and maneuvering manners of the transfer alignment, the Observability Analysis of the transfer alignment system were all researched in detail. The necessary partial simulation and simulation of the transfer alignment system were carried out in turn.First of all, analyzed the gravity model, designed the nominal trajectory by two method of STK-based and based on the space maneuvering platform kinematics;Secondly, the INS calculation model and the error propagation model was established based on the analysis of INS error characteristics of micro-gravity environment. using the previous design of the nominal trajectory, the inertial navigation solution calculate mathematical simulation used to verify this Solution of the model is correct;The third, the transfer alignment model of INS on the space maneuvering platform was established based on the error propagation model of INS which have been given before. transfer alignment system mathematical simulation and the observability analysis carried out under various matching schemes and various maneuvering manners, the optimal matching scheme and maneuvering manner will be found by analyzed the result;At last, Combined with the process of transfer alignment of INS, the Estimates of Gyro constant drift and Accelerometer constant drift was been given.